Fix typo: permissable -> permissible

Signed-off-by: ruicao <[email protected]>

Author: mirake

ingress/controllers/nginx/examples/default-backend.yaml

@@ -14,7 +14,7 @@ spec:
       terminationGracePeriodSeconds: 60
       containers:
       - name: default-http-backend
-        # Any image is permissable as long as:
+        # Any image is permissible as long as:
         # 1. It serves a 404 page at /
         # 2. It serves 200 on a /healthz endpoint
         image: k8s.gcr.io/defaultbackend:1.0

ingress/controllers/nginx/examples/sysctl/change-proc-values-rc.yaml

@@ -29,7 +29,7 @@ spec:
       terminationGracePeriodSeconds: 60
       containers:
       - name: default-http-backend
-        # Any image is permissable as long as:
+        # Any image is permissible as long as:
         # 1. It serves a 404 page at /
         # 2. It serves 200 on a /healthz endpoint
         image: k8s.gcr.io/defaultbackend:1.0